Dwyer 8600 - Manual (Page 20)

949-1277-3 Page 20 December, 1998
to 7PuL. 1PuL = Linear and 7PuL = most
nonlinear. Changes output linearity for use in
cooling applications or for an extremely fast
response processes. At the center of the propor-
tional band, a pulse value of 1 provides an output
of one second on and one second off (50%
output). A pulse value of 2 provides an output of
one second on and two seconds off (33% output).
Output at center of band equals one second on,
2
(pulse value-1) seconds off.
ProP For Current (Code 5) outputs only.
The following menu items apply only if your control is equipped with
a second set point (last digit of model number is not zero). If your
control does not have a second set point, jump to the "tunE" menu on
the next page.
Out2 Output selection: Select OnOf, 2tP, 2PuL, or ProP.
ONOF
A setting of ONOF allows the control to operate as a
simple on/off mode. This setting forces the control to
turn off at set point, and on at the set point plus the
differential (SP2d). When selected, the Out2/OnOF
menu item is followed by ####/SP2d, and the Pb2
selection in the Secondary menu and the S2OL and
S2OH selections in the Secure menu are suppressed.
SP2d Set Point On-Off Differential (hysteresis). Se-
lect 1 to 9999 (direct acting), or -1 to -9999
(reverse acting). This value will be negative for
reverse acting set points, and positive for direct
acting outputs. Set the value for the amount of
difference between the turn off point (set point)
and the turn on point. The drawing opposite
shows output behavior for reverse and direct
action.
##tP Time Proportioning Cycle Time. Select 1tP to 80tP.
1tP A setting of 1tP is recommended for solid state
outputs (SSR or 15VDC).